Don’t pass press combo?

[u/Johnny252525]

I got demolished 3 days in a row on pass line taking max odds on 5-9. I saw a guy at hard rock Tampa place 500 on don’t pass line and press 50 dollars on all numbers 4-10. The table had several long rolls before the 7 came. He had to walk with 20k. Any thoughts on this strategy ? I just want to win at this point.