Thanks for response. I guess I was under mis-impression that vermiculite hard bottom would not dent. In fact I turned on my pool lights tonight and I did see yet additional dents and and indentations. Not the moon but definitely not the silkly smooth bottom I imagined a thousand bucks would get me. Bummer!

I should also mention that the very next day , immediately following the installation of vermiculite hard bottom, my pool company installed the liner. But on vermiculite web site it is recommended that there be no traffic in the pool until the vermiculite has had sufficient opportunity to harden.
"This period will normally be two days depending up temperature. Traffic in the pool prior to sufficient hardening will result in unsightly indentations."
Could the next day liner install have created these dents? It was about 100 degrees on the particular day of vermiculite install which perhaps would speed the vermiculite hardening process (??)