Saying people should stop being lazy helps absolutely no one. You can't force people to "not be lazy", and what's being "lazy" or not is in relation to yourself anyway. A new mapper might've spent a week perfecting their tv size 4 diff mapset, meanwhile an experienced mapper could probably mindlessly make that same mapset in a few hours, have a better map in the end, and still have been "lazy" because they didn't spend the time making the best map they can. Decisions to the RC should not be decided on things like "they're lazy so just make them not lazy"; it's not like you're going to change their behavior with that. Rather, it should focus on what it can do to maximize the amount of content for all players, and this includes more experienced players as well.
If the concern is new players, then we can be sure that calmer 4:30min songs that would fit a NH spread better than a HX spread would still be ranked. If the details of the current proposal doesn't sound good, then suggesting changes that could work such as you still require a normal, or the spread needs to be 3 diff, or whatever, or maybe you believe the current situation is good as it is because x,y,z, but saying "no because they're just lazy" doesn't actually help the problem (if it is a problem) of less people mapping 4:30~4:59min songs, without extending them.
If the concern is new players, then we can be sure that calmer 4:30min songs that would fit a NH spread better than a HX spread would still be ranked. If the details of the current proposal doesn't sound good, then suggesting changes that could work such as you still require a normal, or the spread needs to be 3 diff, or whatever, or maybe you believe the current situation is good as it is because x,y,z, but saying "no because they're just lazy" doesn't actually help the problem (if it is a problem) of less people mapping 4:30~4:59min songs, without extending them.