Sentence structure with "fitting"

Wework’s building in Tokyo’s Shibuya district is a cross between an iceberg and a plastic bottle passed through a shredder. Fitting, then, that the office-rental firm’s abortive listing, shelved on September 17th, threatens a financial shredding for its mastermind, Masayoshi Son—and that the debacle may be the tip of an iceberg for his $100bn Vision Fund (VF).

I wonder about the structure of the second sentence in bold type. How can "fitting" be ahead of whole sentence alone?

Solution 1:

The subject and helping verb "it is" are implied in this sentence for emphasis on how the preceding sentence and this sentence are connected.

[It is] fitting, then, that the office-rental firm's abortive listing [...] threatens a financial shredding for its mastermind[.]