Yes but heavy displacement boats are quickly becoming a thing of the past. Even the type of boats that once used to be high displacement boats are today medium to light boats by 30 years ago parameters.
There are always trends, and heavy boats are expensive so there's a sweet spot for manufacturers where scantlings are not onerous and generous sail area to Displacement is achieved at lower cost. And they are the certainly boats of choice for a lot of people and they suit some sailing lifestyles admirably.
The heavier the boat the greater the loads the the more costly the material and the larger the required sail area for the same performance. But the flip side is greater comfort both at sea and at anchor. Also a greater internal volume and an increased 'homeliness' feel of the boat, and alos the greater it's stores carrying ability.
But not a good cash cow for production boat builders because most of the target market cross bays not oceans .
They are certainly not becoming a thing of the past, just they suit a different lifestyle to the raft of production boats that fill marinas in the clement sailing areas of the world.
Look at the sailboats in my area where any passage offshore ( and often coastal) is 'boisterous', probably close to 70% of cruising sailboats are medium heavy to heavy displacment and nearly all the offshore cruising boats that cruise into the Pacific from here are. Popular designs from NZ and Australian designers abound here. Multihulls are almost non existant here, rough water strong variable winds and good deep anchorages and few marinas, conditions that are often the hallmark of higher latitude sailing around the globe.
In other areas with more benign conditions you'll hear the multitude of multihull owners declaring that monohulls are a thing of the past. Monohulls carry ballast and weight is bad..............