It's only that easy if you make it that easy. Every FF is that way, including FFVII. Infact, with the right materia setup, it's impossible to die...which, technically would make it the easiest FF there is. Of course, getting youself to that point is hard and takes tons of time ...so I guess that would still make it challenging...oh well.

The first time I played FFX I didn't get myself all powered up like that and it was effing hard. You should try it...or better yet, you should try the final boss on FFX-2.