I agree. The comment about RMU losing to a D3 program doesn't have much weight. I don't see that happening. The D3 programs that were good enough to be D1 programs moved up to D1 a long time ago (St Cloud State, Mercyhurst, RIT, Bemiji State, etc.). The D3 programs left are barely better than ACHA D1 teams, and in fact in many case are not even that good.
Yes, the big-time programs are going to dominate, but with only about 60 NCAA D1 programs any given year, there is just too much talent that RMU won't get some. Not granting the full 18 scholarships and smaller budgets will hurt, of course. The comment about the coaches not being the right staff to get them to a better spot, maybe that is true too. But despite the comments about there being too many Tier 1 programs around, there is still plenty of talent in the US, Canada, and Europe for RMU to fill its roster because of the scarcity of NCAA D1 options. I do think an on-campus rink and better facilities will help. It's not like basketball, where there are hundreds of programs & choices. If this option is a little better, their recruits will get better too.
I am definitely not saying RMU is going to be a top choice for top 10 draft picks, but calling it a "last ditch" is not really true either. The alumni report certainly isn't as impressive as Michigan's or even UMass's, but it's not like there aren't some good players who went to RMU:
https://www.hockeydb.com/ihdb/stats/alumni.php?tmi=7731