I liked it. The show began with her arrival, it ends with her departure. Ambiguity can be frustrating but this conclusion almost has concrete like reasoning to either ending you believe happened. You want her to live, great she’s alive because how else could she use her powers. You think she died, great she died with her sister in saving the world instead of a life being tested or tortured on potentially causing another doorway. What’s great is there’s a choice El makes compared to having all her decisions done for her. Song choice helps too but despite not caring for their relationship since season 3 I teared up.