Total horse**** that those activities will hurt your app.
I just don't see how.
On the other hand, depending what field you go into, research will not be necessary and for others your app goes in the trash without research.
Research never hurts always helps.
The special societies/honors always a big plus, but those are determined by your grades mostly or humanitarian stuff you do for which you then get nominated. So telling you to get the best grades you can is not useful advice towards your question, and doing ECs still stands.
You likely have no idea what you want to do yet, so keep doing what you're doing, try to get early clinical experience to know if you want to be a cutter vs not (I knew my first week of MS1 the first time I stepped foot in OR oh hell no) because that can focus what research you get involved with, because getting the best grades and research is going to keep the most doors open.
I figured out early on no surgery for me, and I didn't have the uber competitiveness to want derm or competitive specialties.
Take the SDN and AAMC specialties tests and whatever career advising you can to at least get a sense of cutter vs generalist vs specialist. Certain fields it will make sense to do more bench vs clinical research, surgical vs epidemiology and the like.
Since you already have the biostat thing going for you, see if you can use those skills in the dept of your choice for research.
I will agree that you are expected to have diverse involvement in all sorts of things, but like being pre-med, pubs, longitudinal involvement, depth of involvement, and general impressiveness of accomplishment matters.
So do what you do but try to find research or a club or other cause to pour your heart into. Aim for leadership positions if you can.
I hate research although I had a bunch pre-med. In med school (keep in mind I was not going for anything lofty) I just did what I actually cared about and without even meaning to it wasnt until residency interviews when the interviewers summed up "wow you are really committed to the underserved," that I realized a pattern had emerged, one which totally supported my choice of field, although it could have worked fine for other fields too. (The poor, disadvantaged, mentally ill, susbtance abuse, minorities, all make you a shoe in for any general fields, or like FM, EM, psych, IM, which I had interest in. Would have helped me with PM&R or neuro or rheum or any specialty that sees people with a lot of chronic conditions that make their lives suck). Would that have helped me get into path or rads? No, not really.
Someone I knew was really into geriatrics from day one, and their interests led to an app that reflected that.
Someone else was obsessed with audiology and that led to ENT.
Another it was women and children and they ended up in ob/gyn.
Another did a path year and ended up in peds.
Others showed up for path stuff, of the 10 like 3 made it their thing.
Some people knew day 1 it was derm ortho or surg, and half of them changed by the time of grad.
Some people did a 180 that surprised me, some went for what they thought day 1.
But everyone that put themselves out there according to their interests and tried new things found their way.
It's your first year and you're not professing a big passion here. Get involved in as much as you can if you don't have a field and just whittle it down from there.
You could use this first year to do as much ECs, clinic experiences, elective courses, as possible before picking a research path way for the summer.
You could also see if there's a more short term research project for this year or the summer that could turn into more.
You're not married to whatever research project you start as long as there is an understanding of time frame and responsibilities between you and the project and you follow through on what you do. Better to do a 3 month chart review project for surg and decide it's not for you and move on to something new than sign up for something that's very focussed and wants a 1 yr commitment and bail early.
Hope this helps you chew on what to do next.