Working in the finance sector, I haven't seen push back because I haven't seen anybody or anything use ECDSA. ^^
Usage and support is relatively low. Most people have no idea what ECDSA is or how to use it. There are some issues in java versions (7 or 8) if you try to use ECDSA. I personally don't find the elliptic curves and parameters easy to grasp and I have a math background (multiplying large numbers was much more palatable), I think a developer would quickly hit a roadblock if they tried to work with it.
Long story short. There is no benefits to ECDSA (over RSA) so there is really no reason to push for it.
The only place where DSA is somewhat used is SSH keys. SSH has its own crypto routines, they've added support and pushed DSA for some time. Keys are a bit shorter so it's nicer to copy paste to github or digital ocean.
