So from your perspective, what aren't you getting?
This is the opinion from a departmental chair. His opinion does not reflect all residency program in the US, hence why LECOM is still able to match most of their graduates into programs. However, DO Anes's view on LECOM graduates is still valid for his own residency program - and it may be true of other competitive programs in his league as well.
Look at it this way: people are wary of LECOM due to their lack of standardization. Why are they offering multiple educational systems across multiple sites, instead of sticking to a single one which they can continue to make improvements from like the majority of US medical schools? More importantly, look at their clinical rotations: they display a boatload of variability. One of the critical flaws of many DO schools is their lack of a main teaching hospital, where standards can be more closely watched and resources consolidated to attract the best attendings who want to enjoy a collaborative atmosphere and take advantage of the latest advancements. Some DO schools handle this downside better than others, but LECOM sends their kids to rotation sites spread among eight states. The quality of your rotation is going to be hit or miss, especially with the inadequate advice given by LECOM's single clinical rotation office for all three campuses. Residency programs have no way to verify the quality of clinical education that each LECOM student chose; some may have inadequate inpatient ward-based experience, making up for that with tons of outpatient, preceptor-based, or even physician's offices. It's kinda the same conundrum Caribbean students go through - how the heck do you know that each student has received the same baseline quality of clinical education, given that they're spread out over a wide variety of sites?
It's up to the student to demonstrate that he/she has gained enough clinical experience to perform the duties expected of a PGY-1, and to know enough about the intricacies of a residency program (grand rounds, clinical conferences, didactics...). Without that, you'll have a very steep learning curve that many residency programs will not tolerate in their first year residents; as a newly minted house staff, you have plenty to catch up with.