The same was true of early versions of Open Office which certainly lacked functionality compared with MS Office of the time. It was only with v2 that Open Office became a worthwhile alternative to MS Office and even then, in the early iterations of v2.x, the spreadsheet lacked some important (to me) mathematical functions so I had to stick with Excel for some tasks for a while.

These days it doesn't matter as I don't have the need for such functions any more.