The fact that they also make most if not all of the content available on a "complimentary" basis via Google suggests that they do value occasional visits from non-subscribers.
However if millions of non-subscribers were to install a paywall avoidance app and access the full content on a daily basis, this would probably violate the spirit of "occasional".
I used to subscribe to the WSJ year after year, since about 1999 when they charged $79/year. When it climbed over $120/year, I gritted my teeth and resubscribed, because I still valued the content. But $28.99/month is ridiculous, and I suspect they only get that from larger corporate accounts that have negotiated volume discounts and such. Everyone else either googles the articles or has given up.
To my mind, it's better to have high readership numbers, e.g. Facebook with 1.5 billion free subscribers, versus high subscription rates and a limited readership, but I have no idea how their business model works.