In many companies (not yours, of course) the SDR team is often seen as an "entry level" job that you want to exit out of as quickly as possible, sometimes not really worth investing in or focusing on, since it's considered transitory.

I think that whole thought process is totally broken. On both sides. Here's my view: unless your product sells itself, Sales Development is critical to the success of an organization. It should NOT be a bus stop or afterthought. It should be a key strategy.