Thank you, I'm so glad you like my art!
I'm sorry to hear you have some issues with the way I provide my animations. I believe it the clearest, easiest and fastest way to put together a playable character in a game, but it all comes down to preference.
I personally find it much more convenient and quick to have the animations nicely separated and ready instead of them all in one big spritesheet. The time to import them into your project takes a split second, no longer than importing one big spritesheet. I'd like to know why it is more work for you.
I'm glad you found some way to combine all the spritesheets to make importing them easier for you :)