It boils down to two questions that are being conflated I feel;
1. Should you BUILD Npcs like you do Pcs? (No, use a smaller custom stat block, pick and choose abilities)
2. Should you RUN Npcs like you do Pcs? (Yes, a fireball by any other name* would burn just as sweet)
* there are always exceptions of course, a giant monster with the natural ability to cast say "Control Water" would not be actually casting a spell, and as such would not be dispellable.
However, IF (IF I say, IF...) WotC are replacing spells from obvious spellcasters across the board with non-dispellable abilities, thats bogus.
If they are changing spellcasting abilities to natural abilities for monsters and creatures that do it innately.cool, press on WotC.
1. Should you BUILD Npcs like you do Pcs? (No, use a smaller custom stat block, pick and choose abilities)
2. Should you RUN Npcs like you do Pcs? (Yes, a fireball by any other name* would burn just as sweet)
* there are always exceptions of course, a giant monster with the natural ability to cast say "Control Water" would not be actually casting a spell, and as such would not be dispellable.
However, IF (IF I say, IF...) WotC are replacing spells from obvious spellcasters across the board with non-dispellable abilities, thats bogus.
If they are changing spellcasting abilities to natural abilities for monsters and creatures that do it innately.cool, press on WotC.