Well that says a lot about how poor he actually is if hes not even close to being Englands best CM whilst his competitors are so average like you say? Henderson and Oxlade shit on him for a start. Maddison also is clearly better.
He said "one of Englands best players". That doesn't refer to CM exclusively.
Trent, Henderson, Kane, Sterling, Sancho, Rashford, Delli, Gomez etc are miles ahead of Loftus as things stand.
James Ward Prowse is possibly a better comparison but I'd say even he is better than Loftus.
He doesn't get in Englands starting 11 at the Euros even fully fit for me. Squad player at best.