Because he is just another scammer with a load of crock to peddle, and he got very rich doing it.

QUOTE: I eventually realized thanks to some articles and videos that his definitions of things like ego, intelligence, consciouness or what not were not based in science. He made it all up. Pain body and all that shit.

https://forum.culteducation.com/read.php?12,154904

QUOTE: James Robinson in The Observer in 2008 called his writings "a mix of pseudo-science, New Age philosophy, and teaching borrowed from established religions"

https://en.wikipedia.org/wiki/Eckhart_Tolle

QUOTE: There are people who have asked why is Eckhart Tolle charging for his spiritual talks, and for these web based videos, when he professes to be free of attachment to money.

https://www.outofstress.com/eckhart-tolle-facts/

More than anything, he talks complete and utter nonsense. He's utters the same garbage as all the other 'spiritual leaders.'