How much gain we get by adding one hard-point against a , work-load + investment of adding that many more processors and modular architecture to keep the Digital Threat library updated. Heating issues for those modules,processors etc
Its not only a hardpoint but many other features, Which i have posted in my previous posts
besides it about weapon loads which matters, In A2A having an extra R-73/77 is lifesaver..
but in case of internal, Power with every new Pulse Repetition freq or wave train sequence that your sniffing device gives you when you come to know radar signature of Enemy
Each time you have to change the antennae , Buses and Software source codes/ API for those additional operation and processing , that itself requires grounding of Aircraft and many hours of work of Technicians. I agree that every system has tolerance and just by hooking up a laptop you can upgrade the library/codes for operation . But what if you want to just double the power to Jam the opponent
Instrumental in the EW Spectra's performance is a threat library that can be defined, integrated and updated on short notice by users in their own country, allowing agile and continuous enhancement of the aircraft's protection as operations unfold. Being of modular design, the system is controlled by a dedicated computer with three processors....
Besides these dismounting Rafale EW is similar to Mig-29k`s EW, Rafale use a separate hatch underneath or between the Engines which can be open and EW suite can be dismounted for repairs or change in short notice..
a combat aircraft doesn't need to be upgraded or modified on a daily base, it is designed to fulfill its mission at least for some years so it would be absolutely nonessential to waste external hardpoints for such basic capacities btw if you only need more data storage capacity for a library or more computing power, you'll just have to replace some basic electronics components..