Did you have a blaster when the game launched? Any with a nuke used to be able to rival Megumin's favorite spell. Tankers could herd entire maps & bring them to a blaster to annihilate in one damage capped nuke not a spawn or 2, the entire map (I don't recall if bosses survived that nuke at damage cap but that it's a question is a testament to the power that was lost).
Power creep is not a real thing in a game that didn't have Various specific IO nerfs, 90% cap PPM nerf, Slotted Recharge PPM Nerf, HO nerf, AoE caps nerf, Global Defense Nerf, Enhance Diversification nerf or any number of other nerfs when the things they nerfed were first introduced & "power creep" is certainly irrelevant in a discussion of a legitimate QoL change that isn't clawing back 1/100th of what was lost in a single one of the nerfs i mentioned.