not the gp, but I think the parent commenter means that most technological advances of the last century took place in the West and thus suffers Euro/Western-centrism.
A thousand years ago, when the Islamic caliphate was a center of science and research, Farsi and Arabic were the major languages of scientific publications and inquiry, and there was likely Eastern-centrism in many of its aspects.
Software, programming language, web-design, typography, etc. was all developed for the west and internationallization was not a major concern. Consider, for example, the timetable for the development and standardization of ASCII vs UTF-8, as well as trends of the use of UTF-8 in the web (vs. ASCII) and browser support for UTF-8. Western-centrism is not the result of malice, but it still happens.
Take Medium, for example, which launched a few years ago without proper support for RTL languages and still doesn't do a good job at that. This is a classic trade-off you do when building an "MVP". The trouble is that there is an entire ecosystem where reasonable software-engineering tradeoffs read to one culture/set of cultures being prioritized over others. Short of people of RTL cultures creating their own twitter, medium, etc., there will always be a gap.
Of course, Arab developers, like many others, do try hard to bridge the gap. Edraak is a fork of the edX MOOC platform that added proper UTF-8 and RTL support to edX in the last year or so.
