In my opinion, I certainly would welcome cheaper FS rounds but, I don't think folks should be unhappy about them. The main reason being is that if you're using them correctly (i.e. taking advantage of the range and accuracy, not using them for suppression, or shooting through brush, avoiding snap shoots with regular ballers), you will hit more targets with fewer shots, and this will save most paintballers money.
The one exception that I can think of is pump ballers who make a case of regular paint last four or more outings because they are successful at snapshooting, tucking in close to bunkers and working angles and not firing for suppression.
What I don't look forward to is more people using them just like they were using regular paint. Especially those wanting drum mags "yes, I need 50+ FS round mags so, I can suppress folks at 200'"...
As for these rounds, I think it's important to remember is that every pic shown so far hasn't been the final product. So far we know what they're supposed to look like, the material has yet to be seen.