As for fiberglass boats, we all know there are the good, the bad, and the ugly. I have seen personally a 33' fiberglass hull crush its keel when set down on blocks. Another 56' that also crushed its keel when set down on blocks.
As a former fiberglass Pacemaker owner, for 2 years only, thankfully, the word back then is you never lift a wooden Pacemaker with travel lift straps. Looks to me that the boat got squeezed on the horizontal behind a forward bulkhead and cracked by the planking being stressed horizontally across the edge of the bulkhead.
On a related note, I haul our boat at Jarrett Bay in Beaufort, NC, using a travel lift, but the yard rigs a steel beam horizontally between the two forward straps, and lets the bow sit on that beam alone. The rear double straps lift as well control any roll motion. Only yard I have seen do it this way, but I like it.
Pete