This conclusion is naive. Most film stock, especially b&w, can be kept frozen for very long time without noticeable ill effect.
The former version of Aviphot was discontinued and replaced by the newer version sometime in the mid 2000s.
To put this in perspective, the last Agfa(photo) Leverkusen production APX100 stock out of the Agfaphoto bankruptcy of 2005 was kept frozen and sold off by Maco, Lupus and others in batches as fresh film with progressing use-by-date timed from the time when the specific batch was released. The last batch which was sold around 2013 had a use-by-date of 2015 or 2016 IIRC. This was material that was coated in 2004 or 2005 and it was still very close in its properties to freshly coated material.
A 2020 "use-by-date" does not prove that JCH's film is freshly coated material. Could it be well kept deep frozen old stock from the Agfa warehouses that is sold with a "fresh" best-by-date now? Absolutely.
Exactly that.
For years different companies have sold old BW film (which was produced many years ago) with expiry dates many years in the future.
They took the film (mostly pancakes) from the warehouse, cut it, perforate it (with 35mm), spool it into cassettes (35mm) or finish it to roll film, put an expiry date of 3-4 years on it and sold it.
And that is what JCH is doing here.
Because it is the only thing which can be done.
People here, who think that could be a fresh coating, are completely naive and don't know anything about film production.
Agfa cannot make small production runs. JCH cannot finance big production runs Agfa needs.
By the way, he told us what it is in his own words: Old, discontinued Agfa film. And the tech specs he gives are identical to the discontinued Aviphot Pan 400S.
I will not pay about double the price for old material, because I can get the successor of this film as fresh material for a very attractive price.
I don't think the market needs the same or very similar films in lots of different packings.
Kentmere 100 / 400 you can get now as AgfaPhoto APX New 100 / 400, Fotoimpex CHM 100 / 400, Oriental 100 / 400, and Rollei RPX 100 / 400 are also at least very similar to the Kentmeres (some even say RPX 100 is identical to Kentmere 100, but the 400 is a bit different).
I don't think that is progress for the market.
Really new films with unique characteristics, a different look (like Adox CHS 100 II), that is in my mind progress for us film shooters. Especially as this film is offered in all formats, from 35mm to sheet film, even in special and ultra large formats.