Comparisons between solutions arrived at by different navies are inevitable and often useful, but they also carry the potential to lead discussions further and further astray until we are no longer discussing what is ostensibly the subject of discussion, in this case China's 054B frigate program. Appropriate use of comparisons is thus a matter of emphasis, of ensuring that the focus remains on the subject of the discussion and that there is a clear connection between that subject and the particular comparisons that are used. The link you posted did not meet that criteria.
For an example of what I believe is a more useful comparison, using the same subjects: we can observe that both USN's Constellation-class and UK's City-class are both supposedly ASW-focused designs that lack traditional deck-mounted torpedo launchers. Is this simply cost-cutting in both cases, or does it reflect a recent set of judgments about the utility of such weapons that may also be relevant to PLAN combatants? Note that even though I believe that this is a useful avenue for discussion, it also clearly carries the risk of that discussion wandering astray over time, which bring us to the second element of such discussions: they require discipline from the respondents as well as the original poster, and ongoing supervision.
One of the great challenges facing a forum such as this one is increasing entropy, of growing disorder as the natural overlap between discussion topics leads to those discussions blurring together until we end up with a kind of homogenised China-flavoured soup that is ultimately not particularly useful for someone looking for information, discussion and updates about, in this case, the Type 054B frigate. Moderators and users have seen discussions led astray over time in this way on many occasions and hence can be quite critical and interventionist in "restoring order". As users, we should be conscious of this ongoing challenge and strive for our contributions to be "anti-entropic" ones, and also strive to set our egos aside when interventions do occur.