I think you're missing my point.
If a metagame with Lati@s is broken, that doesn't necessarily guarantee that Lati@s is the cause per se. If we decided that Lati@s "makes dragons too strong" overall, but it wasn't even the strongest dragon, then we'd be justified in testing whatever the strongest dragon happened to end up being (probably Salamence).
Obviously Salamence isn't broken right now. Of course, you can't exactly tell me that a metagame where we had, say, Latios over Salamence wouldn't also be perfectly playable