Hume was booked early in the second half for the foul which sparked an angry reaction in the dugout from Moyes, who claims Grealish needs more protection from officials.
Moyes said: “I think he does. There was a tackle in front of me that looked like a leg breaker to me, I've broke both my legs so I've got an idea of what it's like when you're doing it and I thought there was one which came very close to that.
“But it didn't thank goodness and it was waved on so that was it.
“But he does, he takes a lot of challenges and I think he's renowned for it because he's able to attract players to him the way he plays.”
Moyes was satisfied [with a point](https://www.thenorthernecho.co.uk/sport/25593572.sunderland-1-everton-1-granit-xhaka-scores-equaliser-black-cats/?ref=ed_direct) in what was his first return to the Stadium of Light since the [Black Cats'](https://www.thenorthernecho.co.uk/sport/football/sunderland/?ref=ed_direct) former manager left the club in 2017.
Everton were rewarded for their bright start when Iliman Ndiaye scored a stunning opener, and the Toffees had a glorious chance to double their advantage only for Thierno Barry to blaze over from close range.
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But Sunderland regrouped at half-time, levelled immediately after the interval through Granit Xhaka and were much the better team in the second period.
“I think after 30 minutes I'd have been disappointed if I'd only been going home with a point,” said Moyes.
“I think after 90 I was quite pleased to have had a point. Look, we played well. I think the miss we had from Barry to make us 2-0 took the wind out of our sails.
“I think after that they just started to get a bit of strength from us missing the chance. We'd played well enough the first 20-30 minutes but we didn't play well at all in the second half. We were so poor. I think we played well for periods in quite a lot of games. We played well for a period at Man City. We played well for a period at Tottenham Hotspur.
“We certainly played well tonight for a period against Sunderland. I think you need to give Sunderland a wee bit of credit. They looked as if the manager had got into them a bit at half time and they came out of the traps a bit more in the second half.
“The bigger thing is they gained a goal after 30 seconds or something after the start. Let's be fair, the shot wasn't going to beat the goalkeeper. We were a bit unlucky about the deflection. That gave them even greater strength to make it difficult. All those factors didn't help us perform any better in the second half. We had two or three brilliant chances near the end to probably sneak it and we didn't.”