Two issues. One is that LiveATC or FR24 often use scanners to pick up communications, so transmissions may be clipped -- or someone else pushed their mic button which distorts the received transmission. Further, LiveATC or FR24 receive from locations off the airport. Presumably, planes on the tarmac may hear things more clearly.
Finally, isn't this about wings colliding, and not whether an incident aircraft got back to the ramp in 45 minutes versus 43? ATC didn't cause the accident. Initial blame probably lies with VA not pulling fully to the side, and Egypt completes the problem by not verifying clearance before taxiing.