I mean the first thing is a crime of omission, made in basically every other city of the country - where have we seen land be purchased along highways to build transit done anywhere in this country? Even new bridges built by allegedly progressive administrations continue to neglect putting in train tracks.
The second one is obviously morally wrong, though even that is in dispute. Many "parkways" built at that time had similarly short bridges, look to the Merritt Parkway in CT for example. Also, you can presently get there by bus - https://new.mta.info/guides/beaches/jones-beach In fact, it seems it was accessible by bus when it opened, including having bus drop offs advertised in the opening story - https://www.bloomberg.com/news/articles/2017-07-09/robert-mo...