The problem in View environments is that some people have been using "regular" licenses (Standard, Enterprise, Enterprise Plus) that had a reasonable RAM limit and now all of a sudden they're faced with very tight limits. For example one of our customers has 8 Enterprise licenses for 2 clusters of 2 dual socket machines (one cluster for servers, the other for desktops). This means that we can assign 256 GB of RAM to desktops because we're using regular Enterprise licenses. Had we know that licensing in vSphere 5 would change this drastically we would NOT have paid SnS on 4 CPU's worth of licenses and gone with the View Premier Bundle back then (well, I proposed this to my boss anyway but that's another story). This wouldn't be a huge problem if we could upgrade our View Add-ons and a couple sockets worth of Enterprise to the View Premier bundle but VMware says NO.
The new licensing as a whole will probably nog pose huge problems to the majority of users right now. It will become a problem in the near future though and already is a problem for those who have very high densities of VM's. Essentials (Plus) is crippled because there's a hard limit on vRAM now. There's not even the possibility of purchasing more vRAM. In vSphere 4.1 Essentials Plus had become a very interesting product with the addition of vMotion and HA but now it has become less interesting again.
All in all the new licensing may or may not be a problem to you, it's something that has to be decided case by case. I know I won't be an exclusively VMware person though.