So, Morphy was a bad chess player just because he died 150 years ago? ...
Who wrote that? Some of what has been written:
"... [Morphy's] real abilities were hardly able to be tested. ... The titanic struggles of the kind we see today [Morphy] could not produce because he lacked the opposition. ... Anderssen could attack brilliantly but had an inadequate understanding of its positional basis. ... Morphy remains one of the giants of chess history. ..." - GM Reuben Fine
And even GM Josh Friedel said, "... he was the best player of his time and by quite a ways ..."
By the way, Morphy's death was only about 13 decades ago.
So, Morphy was a bad chess player just because he died 150 years ago? Chess as we know it today solidified in the early 1700s. It began to even be recorded shortly thereafter, but it's unlikely you could go out and get a book like Fischer's 60 memorable games. It was individually learned. I haven't read, but I'm pretty sure there was nothing like what we would recognize as a chess coach. Tournament level play was a relatively new institution. And of course, there were no chess engines to learn from. May as well criticize Shakespeare for inventing new words to put in his poems.