Conversation so far:
What kind of artist was Paris?
He was somewhat old-fashioned in retaining a roundness in his figures, rather than adopting the thin angularity of most of his artist contemporaries.
Did he do a lot of drawings?
CANNOTANSWER.
Did he influence other artists?
Recent scholarship, notably that of Nigel Morgan, suggests that Paris' influence on other artists of the period has been exaggerated.

Question: Why did he feel that way?
Self-contained rewrite: Why did Nigel Morgan feel that way about Matthew Paris's influences?